Datepicker Blocking Off Picked Date '+X'?

Datepicker Blocking Off Picked Date '+X'?

Newbie here to jQueryUI and javascript, but have a quick question: Is there a way to use jQueryUI to block off the picked date (not today's date) +10 days? I know how to limit to a a choice to a '+X' date from today's date; but not sure how to do the same thing with a selected date, so that as the dates progress, the maxDate doesn't.

Also, to color the selected range in a particular color, would that be by utilizing the .css.

An example of what I'm looking for is if my son is grounded for 10 days, I can select today's date, and the next 10 days are blocked out in red; but as the days progress, the blocked off dates remain the same (i.e. independent of moving forward from today's date).

Thanks in advance.